Sash balance for double hung windows



Sept. 8, 1-953 E. M. PADJEN SASl-I BALANCE FOR DOUBLE HUNG wmnows FiledDec. 7, 1951 v m m EM/L W P/QDJEN iatented Sept. 8 1 953 UNITED PATENTOFFICE SASHBALANCEFORDQUBIJE'HUNG WINDOWS Emil M. Padjen, CitrusHeights, Calif. ltnnl ica i m m er 7, 151., Ser No-260;

The present invention relates to a sash balance for double hung windowsand it-consists in the combinations, constructions and arrangements ofparts herein described and claimed.

Generally there is provided a balance for double hung windows whichconsists of a c'hannel plate freely mounted in each of the stiles of awindow-sash and which channeled member is urged outwardly by apa'ir ofcams each of-which is provided with a spring t'ensioningdevice havingadjustable means for controlling the same. The construction is-such thatit willpermit open-.- ing and closing of windowswith ease regardless ofthe difference in size and :weight of the window and regardless ofexpansion and contraction due to weather changes.- A window sashequipped with the present invention will not rattle .or require weatherstripping nor will it jam when being raised or lowered.

his accordingly an object of the invention to provide a novel adjustable:sash balance for double hung windows.

Another object of the invention is the provision, in a device of thecharacter-set forth, of a novel spring actuated cam forming a part ofthe invention.

A further object of the invention .is the pro.- vision .ofnovel meansfor adjusting the tension of a spring forming apart of the inventionwhich spring is adapted to. urge outwardly the aforesaid channel member.

Another object of the invention is to provide a device of the characterset forth which is simple in construction, inexpensive to manufactureand yet effective and efficient in use.

Other and further objects of the'invention will become apparent from areading of the following specification taken in conjunction with thedrawing, in which:

Figure 1 is an exploded perspective view of an embodiment of theinvention,

Figure 2 is a front elevational view of a bracket and associatedmechanisms forming a part of the invention,

Figure 3 is a sectional View taken along line 33 of Figure 2,

Figure 4 is a sectional view taken along line 44 of Figure 2,

Figure 5 is a fragmentary sectional view taken along line 5--5 of Figure1,

Figure 6 is a perspective view of a cam forming a part of the invention,

Figure 7 is a perspective view of a lifting arm forming a part of theinvention, and

Figure 8 is a fragmentary plan view of a win- '3 Glaims. (Cl. 292-44) 2dow sash and window jam illustrating an 'embodiment of the inventionmounted therein.

'Referring more particularly to the drawing, there is shown therein awindow sash generally indicated at 1 t0 and provided with stiles H andhaving a pair of vertically extending spaced grooves 12 cut'therein, thefaces between said grooves I2 being cut away at the upper and lowerportions thereof to form pockets l3 and leaving a centrally disposedblock l4 between the pockets 13.

r In each of the pockets [3 there is mounted a bracket generallyindicated at I5 and having a rear wall l6 and a pair ofoutwardlyextending side walls I! which lie in spaced parallel relationto the sides of the pockets I 3 and, in effect, form continuations ofthe grooves [2. The bracket i5 is provided with a cover plate l8 whichextends sufiiciently outwardly to embrace the upper or lower end of thesash 10, as the case may be, it being understood that the devices in theupper pocket l3 and .in the lower pocket 13 are identical but inverted.

A screw I9 extends through the plate It and is provided with ahead '20which is countersunk in the plate I8. The screw l9 also extends througha horizontal arm 2! which has integrally formed therewith a verticallydependent plate 22 .at whose lower end is integrally formed an outwardlyand slightly downwardly extending arm'2j3. The elements 2 L22 and 213will together he referred to as a pull arm generally "designated at 24,A nut 2 5,:is threaded upon the lower portion of the screw l9 and acompression spring ZS-surrounds the screw 19 and has its upper end inabutment with the underside of the armQl and its lower end in abutmentwith the upper side of the nut 25.

"The channel member generally indicated at 26a is provided with an outerwall 27 and a pair of inwardly extending side walls 28 which latter areadapted to extend into the grooves 12 and between the members H and thesides of the recesses l3.

A pin 29 interconnects the sides ll of the bracket in spaced relation tothe rear wall l6 thereof and a pin 30 likewise interconnects the wallsI! adjacent the forward edges thereof and immediately above the arm 23.

A cam member is generally indicated at 3| and is provided with a collar32 which surrounds the pin 30 and with an integrally formed forward lip33 and an integrally formed rear lip 34. The lip 33 bears against theinner side of the wall 21 of the channel member 26a while the rear lip34 bears against the upper side of the wall 23 of the pull arm 24.

In operation, it will be apparent that the cams 3| act to urge thechannel member 25a outwardly into contact with a window jamb 35 withwhich the sash I is associated and that the pressure exerted by the lips33 against the channel member 26a, is regulated by turning the screw 19to thus regulate the tension of the spring 26 against the underside ofthe arm 2| and, accordingly the pressure against the underside of thelip 34 thus increasing or decreasing the pressure exerted by the lips33. Since the heads 20 of the screws l9 lie within the plates [8, theyare accessible at all times and the tension referred to may be regulatedwithout disassembling the apparatus. It will also be apparent that whenthe jamb 35 and sash ll expand'or contract due to changes intemperature, that the side walls 28 of the channel member 26a will atall times be presented in the path of any passage of air between suchsash and jamb which might otherwise occur. It will also be seen that thetension urging the channel members 26a outwardly will cause the sash tobe held in any selected position while at the same time beingsufliciently yieldable in character to permit the sash I0 to be raisedand lowered without difliculty.

While but one form of the invention has been shown and described herein,it will be readily apparent to those skilled in the art that many minormodifications may be made without departing from the spirit of theinvention or the scope of the appended claims.

What is claimed is:

l. A sash holder adapted to be mounted in a window stile having a pairof spaced longitudinally extending grooves formed in its outer face anda recess interconnecting said grooves at their upper ends and a likerecess interconnecting said grooves at their lower ends, said holdercomprising an elongated channel member having its sides positioned insaid grooves, and spring means in each of said recesses for urging saidchannel member outwardly from said stile, said means including a campivotally mounted in each recess and having an outwardly extendingportion and an integrally formed inwardly extending portion, saidoutward portions bearing against the bight portion of said channelmember, a vertical plate in each of said recesses, an outwardlyextending lower arm formed integrally with the lower end of said plate,a like arm formed integrally with the upper end of said plate, saidlower arm bearing against the underside of the inwardly extendingportion of the cam, and a spring for urging said upper arm in an upwarddirection.

2. A sash holder adapted to be mounted in a 4 window stile having a pairof spaced longitudinally extending grooves formed in its outer face anda recess interconnecting said grooves at their upper ends and a likerecess interconnecting said grooves at their lower ends, said holdercomprising an elongated channel member having its sides positioned insaid grooves, and spring means in each of said recesses for urging saidchannel member outwardly from said stile, said means including a campivotally mounted in each recess and having an outwardly extendingportion and an integrally formed inwardly extending portion, saidoutward portions bearing against the bight portion of said channelmember, a vertical plate in each of said recesses, an outwardlyextending lower arm formed integrally with the lower end of said plate,a like arm formed integrally with the upper end of said plate, saidlowerarm bearing against the underside of the inwardly extending portionof the cam, a spring for urging said upper arm in an upward direction,and means for adjusting the tension of said spring.

3. A sash holder adapted to be mounted in a window stile having a pairof spaced longitudinally extending grooves formed in its outer face anda recess interconnecting said grooves at their upper ends and a likerecess interconnecting said grooves at their lower ends, said holdercomprising an elongated channel member having its sides positioned insaid grooves, and spring means in each of said recesses for urging saidchannel member outwardly from said stile, said means including a campivotally mounted in each recess and having an outwardly extendingportion and an integrally formed inwardly extending portion, saidoutward portions bearing against the bight portion of said channelmember, a vertical plate in each of said recesses, an outwardlyextending lower arm formed integrally with the lower end of said plate,a like arm formed integrally with the upper end of said plate, saidlower arm bearing against the underside of the inwardly extendingportion of the cam, a spring for urging said upper arm in an upwarddirection, and means for adjusting the tension of said spring, saidmeans including a bolt extending vertically through said upper arm, anut threaded upon the lower portion of the bolt, and a compressionspring surrounding said bolt between said upper arm and said nut.

EMIL M. PADJEN.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,364,721 Cook Jan. 4, 1921 2,017,299 Vikre Oct. 15, 1935

